Automatic train-pipe coupling.



1. jv. RUBINSONY AUTOMATIC TRAIN PIPE COUPLING.

APPLICATION FILED APR. I. I9I4.

. UNITED sTATEs PATENT OFFICE.

JOSEPH v. noBINsoni-or'cnnvr CHASE, MARYLAND.

AUTOMATIC TRAIN-PIPE COUPLING.

Specification of Letters Patent;

Patented Nov. e, 1917.

Original application led December 19, 1912, Serial N o. 737,728. Divided and this application filed April 1,

1914. Serial No. 828,876.

To all whom t may concern.'

Be it known that I, JOSEPH V. ROBIN- soN, a citizen of the United States, and a resident of Chevy Chase, county of Montgomery, State of Maryland, have invented certain new and useful Improvements in Automatic Train-Pipe Couplings, of whichthe following is a specification.

This is a division of my application Serial Number 737,728, filed December 19th, 1912, for improvements in automatic train pipe couplers, andthe invention herein described has for its object to provide an improved gasket adapted for use particularly with auto-matic train pipe connectors, and which will accommodate itself to the gapping and opening-up of the connector' heads in rounding curves, etc., in service, and maintain an eflicient joint at all times. l

The invention consists in the combinations, arrangements and improvements hereinafter described, pointed out in the ap- -pended claims and illustrated in the accompanying drawings, in which:

Figure l, is a face View of an automatic train pipe connector showing my improved gasket attached thereto.

Fig. 2, is a sectional view of the gasket applied to an automatic train pipe connector, and

Fig. 3,' `is a horizontal sectional view showing two of my improved gaskets in engagement.`

Referring to the drawings: My im roved `gasket may be used with any lsatis actory orm of connector head A and it may be mounted in the face of the head or ina fiuid vconduit extending through the head or connected therewith. Any ofthe several wellknown forms of support for carryin the automatic connector may also be use A satisgfactory form of such support I indicate at More particularly, my improvement comprises a gasket 5 having a partly spherical convex rear face seated in a complementary socket in the endof a fluid conduit or port 6 of the connector head. The conduit eX- tends .through the head and is provided with an annular seat 7 against which the support B acts in service. In coupling, the gasket 5 mates with a. correspondingly shaped gasket in a counterpart head and to insure against possible leakage, I provide the gasket with an auxiliary .gasket or sealing member 8, preferably of resilient material and which also mates with a corresponding gasket in coupling and is mounted in an undercut seat 9 in the first mentioned gasket. I retain the gasketv in the conduit 6 by a retaining ring 10 of suitable construction interlocked with the conduit and the gasket, as shown.

The .gasket 5 projects beyond the front face of the coupling head B and as aforesaid, is mounted in the fluid conduit or pipe 6 which produces a construction of gasket and pipe' that relieves the .head B of all buffing strains occurring at final register of the heads in coupling and which produces a. single bearing point for the head that is confined within an area approximating the diametrical area of the forward end of the pipe or port 6, whereby in rounding curves and the like the interlocking effect of the guiding members 11 on mating connector heads is greatly augmented.

It will be observed that the gasket 8 is 'adjusted bodily by the gasket 5 to any relative rocking movement occurring between coupled heads and is air extended axially and radially yinto tight contact with the non-yielding walls of said gasket 5, this being due to the air pressurein the pipe 6 acting against the face ofthe gasket 8 at `12, and against the inner face 14 thereof. (See particularly Fig. 8.) Thus the faces of coupled connector heads provided with my improved gasket may rock one upon the other considerably .and a considerable amount of angular movement occur between them without in any degree destroying the air tight connection between mating gaskets V5 and 8.

Having thus described my said invention, what I claim as new and desire to secure by United States Letters Patent is:

1:` Ina train pipe coupling, the combinatlon of a fiuid conducting member, a main gasket mounted 1n a seat at one end of said member to have universal movement therein cose engagement with the surrounding well oft the main gasket by Emi@ pfessure within the eomdmt,

in testimony whereof, I have hereunto set my hand in the presence of two Wti; messes JOSEPH V. ROBKNSON lin the presence ofi- BRAEHAGEN? ARTHUR 1u. BRYAN@ 

